Documentation: HTML, CSS, Markdown, Docusaurus, MDX, OpenAPI/Swagger
Development: Python, TypeScript, JavaScript, React, Next.js, Git/GitHub, GitHub Actions
AI: Claude Code, LLM APIs, Vector Databases, RAG Pipelines, Pydantic AI, Claude Agents SDK, MCP Servers
Domains: AI & LLMs, Blockchain & Smart Contracts, REST APIs, Video Systems
Input Output Global (IOG), originally IOHK, is the blockchain research and engineering company that created and maintains the Cardano protocol.
- Authored and curated 17,900+ lines of documentation for a smart contract platform across 124 files over 13 months, accounting for 78% of repository commits and 59 merged PRs
- Designed information architecture with 5 user personas and visual pathway diagrams; collaborated with engineers to integrate 91-schema OpenAPI specification and 41-page tutorial series
- Built the Essential Cardano AI Assistant—a RAG chatbot indexing 2,500 documents from 8 sources; 20+ prompt engineering iterations with adversarial testing, no hallucinations detected
AJA Video Systems designs and manufactures professional video hardware and software for broadcast, post-production, streaming, and ProAV markets.
- Produced 70+ product manuals (30–120 pages each) over 6 years, including 120-page flagship guides for Bridge Live and Bridge NDI 3G — the company's most complex multi-path streaming systems; reduced support ticket volume by enabling comprehensive customer self-service
- Proactively initiated the company's first REST API documentation—an 8-chapter developer guide covering 7 products across the Ki Pro and HELO lines; partnered with engineers through iterative reviews to deliver developer resources that previously didn't exist
- Validated documentation accuracy by configuring multi-product setups daily (encoders, routers, converters, monitors), tracking signal flows across 4+ devices; served as informal QA, catching errors before release
Ensemble Designs manufactures video signal processing and routing equipment for broadcast, post-production, and live event production.
- Documented 80+ signal processing products across Avenue and BrightEye lines, evolving templates as complexity grew; engaged directly with customers at NAB tradeshows to validate documentation approach, receiving positive feedback
- Sole writer for 6 flagship router products featuring industry-first configurable I/O — a new paradigm replacing fixed-matrix architectures; created manuals from scratch that enabled sales and drove customer adoption
ISEE v2 — Idea Synthesis and Extraction Engine (2026)
Built a multi-model AI orchestration system that expands the possibility space through combinatorial synthesis (6 LLMs × 11 cognitive frameworks), then extracts breakthrough ideas through structured tournament debate. Includes operations dashboard with real-time cost tracking and observability. Project at: github.com/joseph-fajen/isee-v2.
Book of Archon (2026)
Created a 10-chapter official onboarding guide for Archon (archon.diy), a harness-building system for AI coding agents. Built using a custom adversarial AI workflow—Writer Agent vs. Attacker Agent with 7/10+ quality gates—ensuring rigorous accuracy and clarity. Submitted via PR, accepted and merged, now serving as the project's official user guide. Archon has 20k+ stars on GitHub.
Programming Tutor, CodeHS (2013-2015)
CodeHS is an online platform teaching computer science fundamentals to students through interactive JavaScript courses. Evaluated course materials, reviewing and completing 50+ coding exercises for JavaScript proficiency.
Agentic Coding Course — Dynamous, 2025–2026
Systematic methodology for AI-assisted development: structured prompt templates, deliberate planning, and context engineering using the PIV Loop (Plan → Implement → Validate) framework.
Hands-On Linux System Administration — Packt, 2024
Hands-on training in server administration, package management, Apache configuration, and system monitoring—foundational skills for managing documentation infrastructure and understanding production environments.
The Git & Github Bootcamp — Udemy, 2023
Comprehensive coverage of Git workflows including branching, merging, rebasing, and GitHub collaboration patterns essential for docs-as-code infrastructure.
B.A., History and Philosophy — U.C. Davis